The present invention relates to method and apparatus of providing supplementary service information for A/V contents written in a recording medium. This method has a recording medium containing Presentation Language data, which have to be included like as in a digital television signal for supplementary service information in accordance with Advanced TV Enhancement Forum or Digital TV Application Software Environment standard, and reproduces, if a disk reproduction is requested, the Presentation Language data as well as requested A/V data and provides them for a connected external device such as a digital television. As a result, various video information and functions provided with Presentation Language data by a recording medium can be realized at a digital television set being able to accept Presentation Language data.
Legal claims defining the scope of protection, as filed with the USPTO.
1. A method for reproducing supplemental data with audio/video data, the method comprising: receiving a transport stream including an audio/video data stream; retrieving the audio/video data stream from the transport stream and a supplemental data stream associated with the audio/video data stream through a digital interface; obtaining audio/video data from the audio/video data stream and supplemental data from the supplemental data stream; wherein the supplemental data comprises segment units, wherein the supplemental data is obtained separately from the audio/video data by identification information, and wherein the supplemental data is linked to the audio/video data by linking information; reproducing the supplemental data synchronously with the audio/video data; and storing the reproduced audio/video data in a buffer memory.
2. The method of claim 1 , wherein the supplemental data is obtained from an external device.
3. The method of claim 1 , wherein a format of the supplemental data includes a HTML format.
4. An apparatus for reproducing supplemental data with audio/video data, the apparatus comprising: a receiving unit configured to receive a transport stream including an audio/video data stream; a controller configured to: retrieve the audio/video data stream from the transport stream and a supplemental data stream associated with the audio/video data stream through a digital interface, obtain audio/video data from the audio/video data stream and supplemental data from the supplemental data stream; wherein the supplemental data comprises segment units, wherein the supplemental data is obtained separately from the audio/video data by identification information, and wherein the supplemental data is linked to the audio/video data by linking information, and reproduce the supplemental data synchronously with the audio/video data; and a storage device configured to store the reproduced audio/video data in a buffer memory.
5. The apparatus of claim 4 , wherein the supplemental data is obtained from an external device.
6. The apparatus of claim 4 , wherein a format of the supplemental data includes a HTML format.
Cooperative Patent Classification codes for this invention. Click any code to explore related patents in that topic.
December 30, 2009
August 20, 2013
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